name resolution problem: daadjp.com (bind 8.1)

Bernd Plagge bplagge at choicenet.ne.jp
Wed Oct 26 16:03:17 UTC 2005


Thanks for the mail.
Hm, I'm in charge of daadjp.com not of daad.de - but I'll send a mail to
the daad.de sys admin. I hope he will respond.


On Thu, 20 Oct 2005 01:35:47 GMT
base60 <nobody at whitehouse.com> wrote:

> 
> 
> > one of our customers (domain: daadjp.com) has problems to receive
mail
> > from its headoffice (daad.de) the reason being that headoffice
> > nameserver (merlin.daad.de) doesn't respond / times out.
> > BTW, the timeout seems to be set to 2 secs.
> > 
> > fpdns merlin.daad.de tells me that they are running Bind 8.1 -
8.2.1-T4B
> > (recurson enabled)
> 
> The problem seems to be specific to merlin.daad.de and the
> daadjp.com domain -- I tried a number of other domains from
> merlin and the all resolved correctly.
> 
> It resolves correctly from the secondary deneb.dfn.de
> 
> If you just want to *mask* the problem, switch DNS resolution
> on the outbound email relay to deneb.dfn.de
> 
> Since the problem seems specific to merlin.daad.de and the
> domain, it's probably something the person maintining the
> server will need to inspect/resolve.
> 
> 
> > 
> > dig @merlin.daad.de mx daadjp.com 
> > 
> > results in:
> > ; <<>> DiG 9.3.1 <<>> @merlin.daad.de mx daadjp.com
> > ; (1 server found)
> > ;; global options:  printcmd
> > ;; connection timed out; no servers could be reached
> > 
> > while
> > dig @merlin.daad.de mx daadjp.com +trace
> > results in:
> > ; <<>> DiG 9.3.1 <<>> @merlin.daad.de mx daadjp.com +trace
> > ; (1 server found)
> > ;; global options:  printcmd
> > .                       67830   IN      NS      I.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      J.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      K.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      L.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      M.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      A.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      B.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      C.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      D.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      E.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      F.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      G.ROOT-SERVERS.NET.
> > .                       67830   IN      NS      H.ROOT-SERVERS.NET.
> > ;; Received 436 bytes from 194.94.212.2#53(194.94.212.2) in 341 ms
> > 
> > com.                    172800  IN      NS      H.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      I.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      J.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      K.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      L.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      M.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      A.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      B.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      C.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      D.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      E.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      F.GTLD-SERVERS.NET.
> > com.                    172800  IN      NS      G.GTLD-SERVERS.NET.
> > ;; Received 500 bytes from 192.36.148.17#53(I.ROOT-SERVERS.NET) in
169
> > ms
> > 
> > daadjp.com.             172800  IN      NS      ns.choicenet.ne.jp.
> > daadjp.com.             172800  IN      NS     
ns02.choicenet.ne.jp.
> > ;; Received 79 bytes from 192.43.172.30#53(I.GTLD-SERVERS.NET) in
319 ms
> > 
> > daadjp.com.             86400   IN      MX      10 mail.daadjp.com.
> > daadjp.com.             86400   IN      MX      20
mail02.daadjp.com.
> > daadjp.com.             259200  IN      NS      ns.choicenet.ne.jp.
> > daadjp.com.             259200  IN      NS     
ns02.choicenet.ne.jp.
> > ;; Received 123 bytes from 203.141.151.81#53(ns.choicenet.ne.jp) in
5 ms
> > 
> > The total time required for the lookup is less than 2 secs but it
seems
> > that sometimes the limit is exceeded.
> > Even without dig it says: 1 server found
> > but then nothing follows.
> > 
> > Any idea what the problem might be?
> > 
> > Thanks
> > 
> > Bernard
> > 
> > 
> > 
> > 
> > 
> 
> 
> 


-- 
プラゲ ベェアント - Bernd Plagge
ファースト・チョイス・インターネット(有)
First Choice Internet Ltd., Tokyo
Tel. 03-5431-6121
Fax. 03-5431-6122
mail: bplagge at choicenet.ne.jp
url: http://www.choicenet.ne.jp



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